Finding the Fourth Proportional to 1,532,883,325.80, 2,299,291,899.12 and 427,458,737.46
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Solution
The fourth proportional to 1,532,883,325.80, 2,299,291,899.12 and 427,458,737.46 is: 641,178,878.85
Step by Step Solution
- Step 1: Write the proportion equation
1,532,883,325.80 : 2,299,291,899.12 = 427,458,737.46 : x - Step 2: Convert to fraction form
1,532,883,325.80/2,299,291,899.12 = 427,458,737.46/x - Step 3: Cross multiply
1,532,883,325.80x = 2,299,291,899.12 × 427,458,737.46 - Step 4: Simplify right side
1,532,883,325.80x = 982,852,412,249,840,768 - Step 5: Solve for x
x = 982,852,412,249,840,768/1,532,883,325.80 - Step 6: Final answer
x = 641,178,878.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.